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3 years ago

Will mark as Brainliest.

Chemistry

2 answers:

kifflom [539]3 years ago

7 0

You’re going to need to use stoichometry to solve this. Hope this helps

postnew [5]3 years ago

3 0

0.453 moles O2 is the solution

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Calculate the volume of this irregular solid to the nearest cubic centimeter

EleoNora [17]

Answer:

8 cm3

Explanation:

The volume of this irregular solid will calculated as the difference between the final volume and the initial volume;

The final volume of the water and the solid is 25 ml

The initial volume of the water alone was 17 ml

The volume of the irregular solid is thus approximately;

25 - 17 = 8 ml

We then use the conversion;

1 cm3 = 1 mL

Thus the volume of the solid is 8 cm3

6 0

3 years ago

Read 2 more answers

What is the density of an object that has a mass of 6.5 g and when placed in water displaces the volume from 4.5mL to 11.8mL? ro

KengaRu [80]

Answer:

$\rho =0.9g/mL$

Explanation:

Hello,

In this case, due to the volume displacement caused the by the object's submersion, it's volume is:

$V=11.8mL-4.5mL=7.3 mL$

In such a way, considering the mathematical definition of density, it turns out:

$\rho =\frac{m}{V}=\frac{6.5g}{7.3mL}\\ \\\rho =0.89g/mL$

Rounding to the nearest tenth we finally obtain:

$\rho =0.9g/mL$

Regards.

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3 years ago

which conversion factor do you use first to calculate the number of grams of fecl3 produced by the reaction of 30.3 g of fe with

Alexeev081 [22]

Answer:

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3 years ago

The number 4012 has how many significant figures?

grandymaker [24]

Answer:

8 figures.

Explanation:

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3 years ago

The direction of electrical force is based on the fact that like charges will___each other.

NeTakaya

Answer:

repel

Explanation:

When it comes to electrical forces, "opposites charges attract" while "like charges repel."

There are primarily two types of charges: positive charge and negative charge. The forces they exert upon each other will depend on their charges. The positive charge has an attractive force to a negative charge. On the contrary, it has a repulsive force to the same positive charge. Thus, it will repel each other.

So this means that opposite charges will draw closer together while like charges will move apart from each other.

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3 years ago